257517248

素因数分解:

$2^6\times {\mathrm{31}}^2\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:206

約数の個数: 84

約数和(自身を含む): 544799520

約数和(自身を除く): 287282272

約数列:

[1, 2, 4, 8, 16, 31, 32, 53, 62, 64, 79, 106, 124, 158, 212, 248, 316, 424, 496, 632, 848, 961, 992, 1264, 1643, 1696, 1922, 1984, 2449, 2528, 3286, 3392, 3844, 4187, 4898, 5056, 6572, 7688, 8374, 9796, 13144, 15376, 16748, 19592, 26288, 30752, 33496, 39184, 50933, 52576, 61504, 66992, 75919, 78368, 101866, 105152, 129797, 133984, 151838, 156736, 203732, 259594, 267968, 303676, 407464, 519188, 607352, 814928, 1038376, 1214704, 1629856, 2076752, 2429408, 3259712, 4023707, 4153504, 4858816, 8047414, 8307008, 16094828, 32189656, 64379312, 128758624, 257517248]

約数ペア:

[(1, 257517248), (2, 128758624), (4, 64379312), (8, 32189656), (16, 16094828), (31, 8307008), (32, 8047414), (53, 4858816), (62, 4153504), (64, 4023707), (79, 3259712), (106, 2429408), (124, 2076752), (158, 1629856), (212, 1214704), (248, 1038376), (316, 814928), (424, 607352), (496, 519188), (632, 407464), (848, 303676), (961, 267968), (992, 259594), (1264, 203732), (1643, 156736), (1696, 151838), (1922, 133984), (1984, 129797), (2449, 105152), (2528, 101866), (3286, 78368), (3392, 75919), (3844, 66992), (4187, 61504), (4898, 52576), (5056, 50933), (6572, 39184), (7688, 33496), (8374, 30752), (9796, 26288), (13144, 19592), (15376, 16748)]